Yealink SIP-T77U - IP Phone, VoIP Desk Phone with 7-inch Touch Screen and Gigabit PoE
Product Features
The Yealink SIP-T77U is a SIP IP desk phone with a 7-inch, 800 x 480 pixel colour touch screen, up to 16 SIP accounts, dual-port Gigabit Ethernet and PoE. It has USB-A and USB-C ports and 84 one-touch DSS keys. Check before ordering that your phone system supports SIP and what power option you need, as Yealink lists the power adapter as optional; call us if unsure.
SIP-T77U - IP Phone with 7-inch Touch Screen and Gigabit PoE
The Yealink SIP-T77U is a SIP IP phone, also called a VoIP desk phone, built around a 7-inch, 800 x 480 pixel colour touch screen. It supports up to 16 SIP accounts, dual-port Gigabit Ethernet and PoE, and Yealink lists a USB-A and a USB-C port for headsets, Bluetooth, Wi-Fi or call recording. It is part of the Yealink T7 series. Our part number for this phone is 1301011.
What the SIP-T77U is for
Yealink positions the T77U at executives and professionals who want a large touch screen for switching between pages and applications. It is a desk phone for a SIP-based phone system: it registers up to 16 VoIP accounts, handles features such as call hold, transfer, forward, waiting and 10-way conferencing, and offers Busy Lamp Field and Bridged Line Appearance for PBX users. With 84 one-touch DSS keys and support for up to three expansion modules (up to 234 additional buttons), it offers a lot of programmable keys. Yealink says the T7 series is compatible with soft switch suppliers such as 3CX and Broadsoft Broadworks. Other desk phones are listed in IP desk phones.
Key features
- 7-inch, 800 x 480 pixel capacitive touch screen with backlight, plus icons and soft keys, dark and light themes and caller ID with name, number and photo.
- Up to 16 SIP accounts and 10-way conferencing.
- Dual-port Gigabit Ethernet with PoE (IEEE 802.3af, class 3).
- Two USB ports (USB-A and USB-C). Yealink says any two of Bluetooth, Wi-Fi, USB headset and USB recording can be used.
- HD voice with an HD handset and HD speaker, a hearing aid compatible (HAC) handset, Acoustic Shield and Yealink AI noise cancellation.
- 84 one-touch DSS keys, seven feature keys and an illuminated mute, headset and speakerphone key.
- Supports colour-screen expansion modules: up to three, for up to 234 additional buttons.
- Security features including SRTP, TLS 1.3, secure boot, TEE hardware encryption and dual firmware images.
- Stand with 2 adjustable angles; wall mountable (optional).
Full specification
| Identification | |
| Brand | Yealink |
| Model | SIP-T77U |
| Part number | 1301011 (supplier part number) |
| Type | SIP IP desk phone with 7-inch colour touch screen |
| Colour | Classic Grey (as stated by Yealink) |
| Display and indicators | |
| Screen | 7-inch, 800 x 480 pixel capacitive adjustable touch screen with backlight |
| Indicators | LED for call and message waiting indication |
| Interface | Icons and soft keys; multilingual user interface; caller ID with name, number and photo; wallpaper and screensaver; dark and light themes; intelligent power saving |
| Keys | |
| Programmable keys | 84 one-touch DSS keys |
| Feature keys | 7: hold, transfer, message, headset, mute, redial, speakerphone |
| Other | Volume control keys; illuminated mute, headset and hands-free speakerphone key |
| Audio | |
| HD voice | HD handset, HD speaker; Yealink Optima HD Voice |
| Hearing aid compatible | Hearing aid compatible (HAC) handset |
| Noise handling | Acoustic Shield, Smart Noise Filtering and Yealink AI noise cancellation |
| Wideband codec | AMR-WB (optional), G.722 |
| Narrowband codecs | AMR-NB (optional), PCMU (G.711μ), PCMA (G.711A), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC |
| DTMF | In-band, out-of-band (RFC 2833) and SIP INFO |
| Speakerphone | Full-duplex hands-free speakerphone with AEC; VAD, CNG, AEC, PLC, AJB, AGC |
| Calling features | |
| SIP accounts | Up to 16 VoIP accounts |
| Call handling | Call hold, mute, DND, one-touch speed dial, hotline, call forward, call waiting, call transfer, group listening, emergency call, redial, call return, auto answer |
| Conferencing | 10-way conferencing |
| Directory | Local phonebook up to 1000 entries; blocklist; XML/LDAP remote phonebook; smart dialing; phonebook search, import and export; call history (dialed, received, missed, forwarded) |
| IP-PBX features | Busy Lamp Field (BLF), Bridged Line Appearance (BLA), anonymous call and rejection, hot-desking, voice mail, flexible seating, Executive and Assistant, call park, call pickup, centralized call recording, call recording, visual voicemail |
| Connections and expansion | |
| Network | Dual-port Gigabit Ethernet |
| Power over Ethernet | PoE (IEEE 802.3af), class 3 |
| USB | 2 x USB ports (USB-A and USB-C), USB 2.0 compliant; any two of Bluetooth, Wi-Fi, USB headset and USB recording can be used |
| Handset and headset ports | 1 x RJ9 (4P4C) handset port; 1 x RJ9 (4P4C) headset port |
| Wi-Fi | Supported through Yealink WF50(V1) |
| Bluetooth | Yealink Bluetooth headsets are supported through Yealink BT51 |
| Expansion | Supports colour-screen expansion modules (Yealink EXP55): up to three, for up to 234 additional buttons |
| Headset adapter | Wireless Headset Adapter EHS40 supported |
| USB recording | USB call recording to a USB flash drive |
| Management and security | |
| Provisioning | Browser, phone or auto-provision; auto-provision via FTP/TFTP/HTTP/HTTPS; PnP; Broadsoft device management; TR-069; Yealink RPS (Redirection and Provisioning Service) |
| Network protocols | SIP v1 (RFC2543), v2 (RFC3261); call server redundancy; STUN NAT traversal; static/DHCP; HTTP/HTTPS web server; SNTP; UDP/TCP/DNS-SRV; QoS 802.1p/Q (VLAN) and Layer 3 ToS DSCP; IPv6; LLDP/CDP/DHCP VLAN; ICE |
| Security | SRTP for voice; TLS 1.3; HTTPS certificate manager; AES256 configuration file encryption; MD5/MD5-sess digest authentication; OpenVPN, IEEE 802.1X, L2TP VPN; WPA2/WPA3; secure boot; TEE hardware encryption; dual firmware images; Security Center |
| Physical and environmental | |
| Dimensions (W x D x H x T) | 262.1 mm x 167.5 mm x 219.2 mm x 56.9 mm |
| Mounting | Stand with 2 adjustable angles; wall mountable (optional) |
| External power adapter | Optional Yealink AC adapter: AC 100-240 V input, DC 5 V/2 A output |
| USB output current | 5 V/500 mA |
| Power consumption (PSU) | 2.48 W - 2.63 W |
| Power consumption (PoE) | 2.418 W - 3.233 W |
| Operating temperature | -10 to 45°C (14 to 113°F) |
| Operating humidity | 10 - 95% |
| Storage temperature | -30 to 70°C (-22 to 158°F) |
| Packaging (as listed by Yealink) | |
| Package contents | Yealink SIP-T77U IP phone, handset with handset cord, Ethernet cable (2 m CAT5E UTP), stand, Quick Start Guide; power adapter and wall mount bracket are listed as optional |
| Gift box size | 285 mm x 253 mm x 104 mm |
| Carton | 5 pieces per carton; net weight 6.99 kg, gross weight 7.702 kg; 540 mm x 260 mm x 300 mm |
What you will need
You need a SIP phone system or hosted SIP service with an account for the phone, and either a PoE network port (IEEE 802.3af, class 3) or Yealink's optional AC adapter. Yealink lists the power adapter and the wall mount bracket as optional items, so check what is supplied with this part or call us before you order. Yealink lists Wi-Fi through its WF50(V1) module, Bluetooth headsets through its BT51 module and expansion through its EXP55 module; these are separate accessories. For anything not covered on the Yealink datasheet, check the manufacturer page or call us before buying.
Buying from Zenith Security Co.
Zenith Security Co is a UK supplier of Yealink phones and Yealink desk phones, not an installer, and has been operating since 2012. We will go through the product with you before you buy. Our trade counter is in Wolverhampton.
How quickly can I get it?
Orders placed before 2:30pm are normally dispatched for delivery within 1–2 working days to England, Scotland and Wales. You can also collect in store from our trade counter - call first so we can confirm your order is ready. We do not ship to Northern Ireland.
Can I collect it from your trade counter?
Yes. Our trade counter is at Unit 3, Park View Centre, 243 Dudley Road, Wolverhampton WV2 3JU. Please call 01902 902251 first so we can confirm your order is ready.
Does the SIP-T77U come with a power supply?
Yealink lists the power adapter as optional in the package contents, and the phone can be powered over Ethernet (PoE, IEEE 802.3af, class 3). If you do not have a PoE switch or injector, call us before ordering to check what you need.
Does it have Wi-Fi or Bluetooth built in?
Yealink states that Wi-Fi is supported through its WF50(V1) module and Bluetooth headsets through its BT51 module, using the phone's USB ports. These are separate Yealink accessories.
How many SIP accounts does it support?
Yealink lists up to 16 SIP (VoIP) accounts on the SIP-T77U.
Do you offer trade accounts?
Yes, trade accounts are available. See our trade customer page for details.
Questions on specification or compatibility: call 01902 902251, see our FAQ and support pages, or contact us.
| Product Code | 1301011 |
|---|---|
| Manufacturer | Yealink |
| Colour | Brown |
| Product Type | IP desk phone |
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